add a "hacks" directory with hackish-quality pieces of software

stuff put in there is of lower quality / coding standard / whatever
and serves as example to do quick debugging taks using the T
infrastructure

common/utils/T/tracer/hacks/Makefile

@@ -0,0 +1,18 @@
+CC=gcc
+CFLAGS=-Wall -g -pthread -DT_TRACER -I. -I..
+
+LIBS=-lX11 -lm -lpng -lXft
+
+all: dump_nack_signal
+
+dump_nack_signal: ../utils.o ../database.o ../config.o ../event.o \
+                  dump_nack_signal.o
+	$(CC) $(CFLAGS) -o dump_nack_signal $^ $(LIBS)
+
+.PHONY: all
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+clean:
+	rm -f *.o core dump_nack_signal